★ The machine tool is a four axis (X axis is work piece transverse feeding, Z1, Z2 axis is grinding wheel longitudinal movement, B axis is horizontal indexing) multi-functional NC grinder, which is mainly used for grinding the inner circular hole, inner conical hole, inner end face, outer circle, outer conical surface, outer end face, inner and outer spherical and other complex requirements of the work piece. The grinding cycle is completed automatically (with automatic feed, withdrawal, rough grinding and fine grinding); Automatic dressing of grinding wheel, automatic compensation, etc.).
★ The machine tool adopts the structural mode of work piece box feeding, B axis indexing (torque turntable) and two independent work tables (grinding wheel frame) do the left-right movement. The X-axis and Z-axis moving guide rails are rolling linear guide rails, which are driven by servo motor through ball screw. The rotation speed of work piece spindle and grinding wheel spindle are controlled by frequency converter to realize stepless speed regulation. The work piece clamping is a hydraulic power chuck, and other matching fixtures can be configured according to the particularity of the user's work piece.
★ The machine tool has a fully enclosed protective cover, with a front rotary operation box and a rear backpack electrical cabinet.
Main technical parameters
S.N. |
Name |
Technical specification |
1 |
Grinding ID scope |
20-200 ( mm ) |
2 |
Max. Grinding depth |
200 ( mm ) |
3 |
Grinding OD scope |
30-300 ( mm ) |
4 |
Max. Grinding length |
200 ( mm ) |
5 |
Motor power of work piece |
2.2 ( KW) |
6 |
Servo motor power of X axis |
11 ( NM ) |
7 |
Servo motor power of Z1 Z2 axis |
11 ( NM ) |
8 |
Motor power of grinding wheel 1 |
4 ( KW) |
9 |
Motor power of grinding wheel 2 |
7—22 ( KW ) |
10 |
Torque motor power of B axis |
2.2 ( KW) |
11 |
Motor rotating speed of grinding wheel 1 |
2800 (r/min) stepless speed regulation |
12 |
Motor rotating speed of grinding wheel 2 |
1000-24000 (r/min) stepless speed regulation |
13 |
Rotation speed of work piece |
0-600 (r/min) stepless speed regulation |
14 |
Positioning accuracy of B axis |
+、一4 arc sec. |
15 |
Positioning accuracy of X/Z1/Z2 axis |
5 ( um ) |
16 |
Repeat positioning accuracy of B axis |
+、一2 arc sec. |
17 |
Repeat positioning accuracy of X/Z1/Z2 axis |
2 ( um ) |
18 |
Max. Stroke of X axis |
550 ( mm ) |
19 |
Max. Stroke of Z1 Z2 axis |
450 ( mm ) |
20 |
Max. Moving speed of X axis |
10 ( m/min) |
21 |
Max. Moving speed of Z1 Z2 axis |
10 ( m/min) |
22 |
Size of machine tool |
3000×2900×2700 ( mm ) |
23 |
Weight of machine tool |
6300 ( KG ) |
24 |
Rated power (about) |
28 ( KW ) |
Processing accuracy |
1 |
ID/OD roundness |
2 ( um ) |
2 |
ID /OD cylindricity |
3 ( um ) |
3 |
ID/OD concentricity |
3 ( um ) |
4 |
ID / OD surface roughness |
Ra0.4 (um ) |
5 |
Perpendicularity of inner hole, outer circle and end face |
4 ( um ) |